METHOD OF MOUNTING A BACKUP ORIENTATION UNIT OF A FLIGHT-NAVIGATION SYSTEM ON AN INSTRUMENT PANEL OF AN AIRCRAFT Russian patent published in 2024 - IPC G01C23/00 G05D1/49 

FIELD: aircraft instrumentation.

SUBSTANCE: essence of the technical solution consists in the fact that installation of orientation unit is carried out in two stages. At the first stage, a backup orientation unit is installed on the dashboard, then, the aircraft (AC) is transferred to the horizontal position and by means of the controls on the information display device the orientation unit is transferred to the "adjustment to horizon" mode, during which calculated values of roll and pitch are compared with values of roll and pitch received from the main system, and their difference is recorded in computer memory for further determination of orientation parameters. At the second stage, AC test flight is performed with evolution of spatial position, with output of information by orientation unit on projections of angular velocity and linear accelerations on connected axes AC and with the recording of these parameters together with similar data from the main orientation parameter determination system (SINS). Based on the processing results, deviation of the longitudinal axis of the orientation unit from the longitudinal axis of the SINS, which coincides with the longitudinal axis AC, is determined; this value is recorded in the memory of the computer for further determination of the orientation of AC.

EFFECT: high accuracy of measuring AC orientation parameters.

1 cl, 1 dwg